World Health Organization. (2002). Guidelines for the management of sexually transmitted infections in female sex workers. World Health Organization.
Chicago Style aipamenaWorld Health Organization. Guidelines for the Management of Sexually Transmitted Infections in Female Sex Workers. Geneva, Switzerland: World Health Organization, 2002.
MLA aipamenaWorld Health Organization. Guidelines for the Management of Sexually Transmitted Infections in Female Sex Workers. World Health Organization, 2002.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.